BiologyWhich pollutant released into the air during refrigeration and air conditioning is the greatest contribute to the depletion of ozone layer ?

Which pollutant released into the air during refrigeration and air conditioning is the greatest contribute to the depletion of ozone layer ?

  1. A

    BHC

  2. B

    DDT

  3. C

    CFC

  4. D

    UNEP

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